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Kojima explains the Solid, Liquid and Solidus Snake names - Metal Gear Informer
On Twitter, Kojima took some time to explain his reasoning behind the name 'Snake', and the three adjectives, 'Solid', 'Liquid', and 'Solidus'. The reason I used Snake as code name in MG was snake was the most appropriate symbol of living thing that hides his presence, & sneaks w/o any noise. The reason I didn't make any specific snake like cobra, anaconda,
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